High-Performance Electron-Transporting Polymers Derived from a Heteroaryl Bis(trifluoroborate)

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• 作者：Jin-Kyun Lee ; Michael C. Gwinner ; Reinhard Berger ; Carol Newby ; Rudolf Zentel ; Richard H. Friend ; Henning Sirringhaus ; Christopher K. Ober
• 刊名：Journal of the American Chemical Society
• 出版年：2011
• 出版时间：July 6, 2011
• 年：2011
• 卷：133
• 期：26
• 页码：9949-9951
• 全文大小：704K
• 年卷期：v.133,no.26(July 6, 2011)
• ISSN：1520-5126

文摘

In this communication, we report that dipotassium aryl bis(trifluoroborate)s make stable and easy-to-purify yet reactive monomers under Suzuki polycondensation reactions. A bis(trifluoroborate) of 2-alkylbenzotriazole was prepared successfully and copolymerized with dibromobenzothiadiazole in the presence of a Pd catalyst and LiOH, yielding high molecular weight conjugated polymers. This polymer (P1) composed of all electron-accepting units shows excellent electron-transport properties (渭_e = 0.02 cm² V^鈥? s^鈥?), which proves the value of the aryl bis(trifluoroborate) monomers and suggests that many other types of semiconducting polymers that could not be accessed previously can be synthesized using this approach.